This is the best lecture to immediately learn, 'Ah, this is SQL, how to study it, and how to use it.'

wyk4657

You will be able to extract the data you want directly without the help of a developer. We will provide everything you need for analysis, from simple queries to joins. Start learning SQL with a direct lecture from the author of the book <Planner's SQL>.

breachers

[Concept Class] Learn and Use SQL Queries Right Away

입문

초급

중급이상

Orientation

Basic SQL Usage (Query)

Intermediate SQL Usage (Grouping & Functions)

Intermediate to Advanced SQL Usage (Join)

While giving a lecture